United Administrative Services / Check Fraud

I received a fraudulent check in the mail from United Administrative Services. The check was written for $2500 and was made out to my full name at my work address. To me it was evident immediately that the check was not legitimate but certainly looked real enough to fool some people. I looked up the company and called them to try to get a better idea of what was going on. The receptionist who answered transferred me to the voicemail of apparently the only lady who could tell me why I was sent this check. She was conveniently unavailable each time I called and her voicemail stated that I needed to leave her my social security number to get a call back. Not sure exactly what their objective is but obviously do NOT attempt to deposit this check if you receive one.